20 lines
291 B
Text
20 lines
291 B
Text
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open nat
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structure foo [class] :=
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(a : nat) (b : nat)
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definition i1 [instance] [priority default+1] : foo :=
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foo.mk 1 1
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definition i2 [instance] : foo :=
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foo.mk 2 2
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example : foo.a = 1 :=
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rfl
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definition i3 [instance] [priority default+2] : foo :=
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foo.mk 3 3
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example : foo.a = 3 :=
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rfl
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